Distributer for rock-pulp



W. T. VARNEY, DfSTRIBUTER FOR ROCK PULP.

' APPLICATION FILED MAY8,1919.

1,342,727. Patented June 8, 1920.

. inn-GE- VaJney.

WILLIAM T. VARNEY, 0F VANCOUVER, BRITISH COLUMBIA, CANADA.

DISTRIBUTER FOR ROCK-PULP.

Specification of Letters Patent.

Patented June 8, 1920.

Application filed May 8, 1919. Serial No. 295,685.

To all whom it may concern:

Be it known that I, WILLIAM T. VARNEY, a citizen of the Dominion of Canada, residing at Vancouver, in the Province of British Columbia, Canada, have invented certain new and useful Improvemenets in Distributers for Rock-Pulp, of which the following is a specification.

This invention relates to a means for distributing the pulp of metalliferous rock over a concentrating or amalgamating table in a manner to insure uniform distribution in a thin spread layer and to effect the delivery of the same quietly with the required wavelike flow with the water, which gives the desired wash to the deposit on the plates.

In such spreaders as are used at present, the solid matter of the pulp separates itself when delivered to the table and the liquid constituent finds its way through in a series of channels, which condition is not at all favorable to satisfactory separation of the mineral contents of the pulp.

The invention is fully described in the following specification, reference being made to the drawings by which it is accompanied, in which:

Figure 1 is a plan showing the application of my distributing device to an amalgamating table, and

I ig. 2 is a cross section of the same on the line 22 in Fig. 1.

' The distributer consists of a cylinder 5,

the length of which extends across the width of the table and at its ends is secured on a shaft or stem 6 by which it is rotatably mounted in the side walls of the table 2 adjacent the upper end. The length of this cylinder 5 is divided by circular artitions 7 into a series of substantially equal divisions, each of which is again divided by radial partitions 8 into a series of subdivisions 9 forming pockets 11 for the reception and delivery of the pulp.

To each length division of the cylindrical body, that is, between each pair of circular partitions 7, the pulp is delivered through separate pipes 10 that each may receive a fairly equal proportion of the pulp to be delivered to the table.

The distributer is slowly rotated by any suitable means, in the direction of the arrows in Fig. 2, that its underside will travel in the direction of the flow on the table, and the amalgamating plate 3 is carried approximately halfway up the circle of the distributer concentric therewith.

The radial partitions 8 of each division are staggered in relation to those of the divisions next to it on each side, that the delivery from the pockets 11 during rotation in the direction indicated will correspond with what is known as the stamp drop order, that is, that the delivery from a pocket 11 of one division shall not be immediately followed by delivery from either of the divisions neXt to it but from one more remote, that the wave from one may distribute itself laterally over the spaces opposite the adjacent divisions before they deliver.

Thus, referring to Fig. 1, a pocket of the middle division will deliver first, one in either end division next, then one in the division second from the opposite end, then from the second from the other end, and then from one in the other extreme end division. The order is indicated by the letters a, b, 0, d, e. The wavelike delivery in this order is found to insure the most effective distribution.

By this manner of distribution the pulp is uniformly spread across the width of the table and the wavelike wash on delivery from the several pockets prevents settlement of the pulp on the amalgamating plates and enables a more effective recovery of values to be obtained.

Having now particularly described my invention, I hereby declare that what I claim as new and desire to be protected in by Letters Patent, is:

1. A pulp distributer, comprising the combination with a flat table, the surface of which is uninterruptedly produced and upwardly turned at one end, of means for delivering pulp through separate outlets disposed at substantially equal distances apart across the width of the table, and means interposed between the delivery outlets of the pulp and the surface of the table for intermittently delivering the pulp against the upwardly turned end of the table.

2. A pulp distributer, comprising the combination with a flat table, the surface of which is uninterruptedly produced and upwardly turned at one end, of means for delivering pulp through separate outlets disposed at substantially equal distances apart across the width of the table, and means interposed between the delivery outlets of the pulp and the surface of the table for intermittently delivering the pulp against the upwardly turned end of the table, the c0nsecutive deliveries to the table being remote from one another.

3. A pulp distributer, comprising the combination with a flat table having an uninterrupted upwardly turned end, a body rotatably mounted across the table adjacent and parallel to the upwardly turned end, said body having flanges at intervals apart dividing its length into a series of substantially equal parts, each part having partitions between the flanges subdividing it into a series of pockets, and means for delivering a substantially constant flow of pulp to each series of pockets.

4. A pulp distributer comprising the combination with a flat table, the surface of which is produced and upwardly turned at one end, a hollow cylindrical body mounted across the width of the table adjacent and parallel to the upwardly turned end, said body being cross-divided by flanges and each division subdivided by partitions parallel to the axis into a series of compartments, and means for delivering a substantially constant flow of pulp to each series of compartments on that side of the axis which is toward the upwardly turned end of the table.

In testimony whereof I afiix my signature.

WILLIAM T. VARNEY. 

